Precision English Proofreading Needed

I’m looking for a careful native-level editor to give my English text a final, meticulous pass focused on grammar and punctuation. I have already shaped the content; what I need now is a sharp eye to catch any lingering comma slips, agreement issues, or awkward sentence mechanics so the document reads flawlessly from start to finish.

The main objective is correctness, so every mark you make should tighten accuracy without altering my intended meaning or voice. Improvements to style or clarity are welcome when they naturally arise, but please treat them as secondary to eliminating grammatical errors.

Turnaround is flexible—quality comes first—yet if you can deliver sooner rather than later, that’s a plus. You’ll give me:

• A clean, ready-to-use version
• A tracked-changes file so I can review every correction

I’m happy to answer questions about context or preferred conventions as you work. If this sounds like the kind of precise polishing you enjoy, let’s get started.